Let us define combat accuracy. Combat accuracy is 3-4 inches at 25 yards. Most factory semi-autos from the better manufacturers will do this feat, including the Beretta Cougar. If you must have a semi-auto that groups better--say 1.5 to 2 inches at 25 yards--a Sig Sauer P220 is the only factory pistol I have shot that will perform this well with decent ammo. Beyond that choice, you are considering custom-tuned 1911.
Remember too that inherent accuracy is determined in a Ransom Rest device, not a shooter's hands. Also, most self-defense encounters with a pistol occur at 7 yards or less. So, considering the abuse a pistol takes with daily concealed carry, reliably should probably count more than inherent accuracy. The Berettas are very reliable pistols.